Signaling apparatus



(N0 Model.)

B. J NOYES. SIGNALING APPARATUS.

No. 474,853. Patented May 17, 1892.

' UNITED STATES ATENT OFFICE.

BERNIOE J. NOYES, 0F BOSTON, MASSACHUSETTS.

SIGNALING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 474,853, dated May 1'7,1892.

Applioation filed September 1'7, 1889. Serial No. 324.181. (N0 model.)

To all whom it may concern:

Be it known that I, BERNIOE. J. NOYEs,of Boston, county of Suffolk,State of Massachusetts, have invented an Improvement in SignalingApparatus, of which the following description, in connection with theaccompanying drawings, is a specification, like letters and figures onthe drawings representing like parts.

In United States Patent No. 359,688, dated March 22, 1887, an electricsignaling apparatus is shown, comprising signal-transmitters located attransmitting-stations and a receiving apparatus located at areceiving-station operatively connected in the signaling-circuit, thesaid signal-receiving apparatus comprising a register and a bell orother indicating signal, the latter responding to some but not to othersignals.

In carrying out the invention the bell was arranged to be included orconnected in circuit when desired that it should operate, and adistinguishing impulse was employed to effect such connection, theimpulse therein shown being one of dilierent duration.

In another application filed by me concurrently with this, Serial No.324,180, a signaling apparatus is shown comprising a register and abell, both of which are normally included or operatively connected inthe signaling-circuit, and a switch is employed to render inoperative,disconnect, or cut out the said bell for some signals and not forothers.

This invention, generically showing means for carrying out substantiallythe results of said application, Serial No. 324,180, has for its objectthe provision of novel and specific devices by which said results maybeeheaply and efficiently carried out.

In accordance with this invention the signal-transmitters areconstructed and arranged to transmit the signals by any well-known kindor character of impulse, and for some, or in eonj unction with some, ofthe signals a distinguishing impulse is transmltted, and at thereceiving-station a register and a bell orother indicating signal areconnected 1n the signaling-circuit, both of which respond to all slgnalsunless one of them-as the bell or indicating signal-*shall be cut out ordisconneeted.

As herein shown, a time-switch is placed at the receiving-station, themovement of which is controlled byan eleetro-magnet. Theswitch is sotimed that when moved it will disconnect or cut out the bell for asufiicient length of time to permit the reception of the signal. Theelectro-magnet of said time-switch is effected by the distinguishingimpulse.

Figure 1 shows in diagram an electric signaling apparatus embodying thisinvention, and Fig. 2 a diagram of a central office or receiving stationto be referred to.

The signaling-circuit a connects the signalboxes at the substations witha signal-receiving station. At each sub-station a multiplesignalingapparatus is shown of some suitable construction, many forms being nowwell known, the one herein shown, however, comprising a series of wheels2 3 4t 5, arranged on a shaft 6, which may be revolved by any suitablemotor, a series of contact-pens 7, (one for each signal-wheel,) and aselecting-cylinder 8, turned into different positions by means of apointer p. This signal-transmitter when constructed as herein shown orotherwise must be arranged to transmit the signals by impulses of anywell-known kind or character, and also transmit with some, or inconjunction with some, signals a distinguishing impulse. As shown inFig. 1, the transmitter is arranged in a metallic circuit and theregular signal impulses are sent over that circuit, while thedistinguishing impulse is sent over a ground-circuit.

At the receiving-station (see Fig. 1) a receiving-relay b is included inthe signalingeircuit, the armature Z) of which closes and opens a localcircuit 12 containing aloeal battery b a register b and a bell 12 Anelectro-magnet c is also arranged at said receivingstation, included inaground tap orbraneh 0, leading from the main signaling-circuit. Thearmature c of this electro-magnet c has attached to it, one member of aswitch cl, arranged to open and close a shunt-wire d for theloell 11When the armature is retracted,

the bell b is not shunted out, and hence will respond to the movement ofthe armature b of the relay Z); but when said armature c is attractedthe said bell b is shunted out and will not respond.

ration.

The armature c has co-operating with it a retarding device,herein shownas comprising a sector e, engaging a pinion e, fixed to a shaft carryinga ratchet-wheel 6 a toothed wheel 6 arranged on said shaft and carryinga pawl e which engages the said ratchet-wheel, and a fan-escapement emature 0 can move toward the poles of the electro-magnet c quickly, butwill return to its normal position by means of the retractile spring aslowly.

A switch 01, as shown, comprises a stationary block or armature and anarm, the latter being attached to the armature 0 The block has quite along contacting-surface, so that t ,t1 .imp.ulse is sent overaground-circuit,

including the relay 0. On the reception of this signal the first impulsedraws the armature into contact with the poles of the elect agnet c andcloses the switch d, so that as the otherimpulses are transmitted thebell b will be shunted out.

I have arranged the switch at so that on the reception'of agroundimpulse the switch will beclosed before the armature b can close thelocal circuit, although in practice the action will b substantiallysimultaneous, the object being to close the switch before the bell bwill operate.

Referring to Fig. 2, the electro-magnet c is included in thesignaling-circuit, and instead of being responsive toground impulsesalone,

or to an impulse difterentiin character to the regular signal impulses,the distinguishing impulse employed will be one of different du- Toeffect the desired results, the retarding device is arranged to retardthe move- As represented, the ar ment of the armature c alike orsubstantially so in each direction, so that on the reception of animpulse of long duration it will retract sufficiently to close theswitch and shunt out the bell 19 The switch is arranged to remain closedduring nearly the whole movement of the armature c and the retardingdevice is timed so that the switch will remain closed a sufficientlength of time to receive the signal. Thus it will be seen that ineither instance shown the same results are carried out in substantiallythe same way.

I claim- 1. In an electric circuit, a signal-receiving stationcontaining a register and a bell operatively connected with the saidcircuit and normally responsive to the signal impulses, a controllingdevice for rendering said bell nonresponsive, consisting of ashunt-switch and retarding device for it, andan electro-magnet for saidshunt-switch responsive to .a distinguishing impulse, combined with asignaltransmitter, also connected with said circuit and contained in abox, and a circuit-changer for transmitting said distinguishing impulseto effect the operation of said electro-magnet, substantially asdescribed.

2. In an electric circuit, a signal-receiving station containing aregister and a bell operatively connected with the said circuit andnormally responsive to the signal impulses, a controlling device forrendering said bell nonresponsive, consisting of a shunt-switch, aretarding device for it, and an electro-magnet in another circuit forsaid shunt-switch responsive to a distinguishing impulse, combined witha signal-transmitter, also connected in said circuit and contained in abox, and a circuit-changer in another circuit for transmitting saiddistinguishing impulse to effect the operation of said electro-magnet,substantially as described.

In testimony whereof I have signed my name to thisspecification in the.presence'of two subscribing witnesses.

BERNIGE J. NOYES.

Witnesses:

GEO. W. GREGORY, E. J. BENNETT.

